Relation between atmospheric pressure fluctuations and swine gestation length variation.
D000818:Animals; D000831:Animals, Newborn / Q000502:physiology*; D001274:Atmospheric Pressure; D005260:Female; D005865:Gestational Age; D011247:Pregnancy; D011270:Pregnancy, Animal; D013552:Swine / Q000502:physiology*; D014887:Weather